Allow downloading decision PDFs

Closes #183

server.py

@@ -1506,6 +1506,17 @@ def print_decision(decisiondocument):
         "show_protocol", protocol_id=decisiondocument.decision.protocol.id)
 
 
+@app.route("/decision/download/<int:decisiondocument_id>")
+@login_required
+@protect_csrf
+@db_lookup(DecisionDocument)
+@require_private_view_right()
+def download_decision(decisiondocument):
+    return send_file(
+        decisiondocument.as_file_like(), cache_timeout=1,
+        as_attachment=True, attachment_filename=decisiondocument.name)
+
+
 @app.route("/errors/list")
 @back.anchor
 @login_required

templates/protocol-show.html

@@ -103,9 +103,12 @@
                             {% for decision in protocol.decisions %}
                                 <li>
                                     {{decision.content}}
-                                    {% if config.PRINTING_ACTIVE and has_private_view_right and decision.document is not none %}
+                                    {% if has_private_view_right and decision.document is not none %}
+                                        {% if config.PRINTING_ACTIVE %}
                                             <a href="{{url_for("print_decision", decisiondocument_id=decision.document.id, csrf_token=get_csrf_token())}}">Drucken</a>
                                         {% endif %}
+                                        <a href="{{url_for("download_decision", decisiondocument_id=decision.document.id, csrf_token=get_csrf_token())}}">Download</a>
+                                    {% endif %}
                                     {{render_likes(decision.likes, decision_id=decision.id)}}</h2>
                                 </li>
                             {% endfor %}